TWI542382B - Exercise device providing adjustable pace length - Google Patents

Description

Motion device with adjustable stroke span

The present invention relates to a motion device, and more particularly to a motion device that can adjust the span.

Ellipticals, also known as cross-trainers (X-trainers), are used to simulate climbing, walking, or running.

The elliptical machine combines the advantages of a treadmill and a pedal to perform a systemic exercise in a standing position. Since both feet are fixed on the elliptical machine at the same time, the left and right feet are forced to take half of the time, which can reduce the impact force of the knee joint and reduce the chance of injury.

Elliptical machines typically have pedals for the user to step on. The pedals of the traditional elliptical machine have a fixed trajectory, which makes the use of the elliptical machine less versatile.

Some patents, such as the Taiwan patent M403355 "lifting device for elliptical exercisers", disclose a lifting device for an elliptical exercise machine that can change the trajectory of the pedal. However, the span of the motion trajectory (stroke), that is, the distance between the feet of the user during exercise, is still fixed.

Fig. 1 shows another conventional elliptical machine 1 having a stroke span fixed at 20 。. Due to the difference in height, this fixed stroke span cannot be adapted to all users, resulting in a reduced training effect.

The present invention relates to a motion device, and more particularly to a motion device that can adjust the span.

An embodiment of the present invention provides a motion device including a base, a transmission mechanism, a left and right linkage mechanism, and a span adjustment mechanism. The front end of the base extends upwardly with a front mounting bracket. The transmission mechanism is disposed on the front fixing frame. The left and right linkage mechanisms are respectively disposed on the left and right sides of the front fixing frame, and one ends of the left and right linkage mechanisms are respectively connected to the transmission mechanism, and the other ends respectively have a left and right pedal group, and the left and right pedal groups respectively A motion trajectory is formed separately. The span adjustment mechanism comprises a left and right linkage rod set, a left and right swing rod set, and a driving member. The left and right linkage rod sets respectively have two ends, one end of which is connected to the front fixing frame, and the other end is movably connected to the left and right pedal groups. The left and right swinging rod groups respectively have two ends, one end of which is connected to the front fixing frame, and the other end is movably connected to the left and right pedal groups. The drive member connects the left and right swing bar sets. The left and right swinging lever sets respectively comprise a pulley block through which the left and right interlocking lever sets pass, and the driving component is used for lifting or lowering the left and right swinging rocker groups, thereby determining a stroke span.

In one embodiment, the pulley block is a hollow structure and has a plurality of rollers that abut the left and right linkage rod sets.

In one embodiment, the plurality of rollers are respectively located on both sides of the left and right linkage rod sets to clamp the left and right linkage rod groups.

In one embodiment, each of the rocking bar sets further includes a lift frame, a rocking bar, a first connecting rod, and a second connecting rod, the lifting frame has two ends, one end of which is pivotally connected to the front The other end is pivotally connected to the rocking bar, and the rocking bar has two ends, one end of which is pivotally connected to the lifting frame, and the other end is pivotally connected to the pulley seat, the first connecting rod has two ends, one end of which is The pulley base is connected, and the other end is pivotally connected to the second connecting rod. The second connecting rod has two ends, one end of which is pivotally connected to the first connecting rod and the other end of which is pivotally connected to the pedal set.

In one embodiment, each of the linkage rod sets includes a first linkage rod and a second linkage rod. The first linkage rod is sleeved in the pulley seat and has two ends, one end of which is pivotally connected to the front fixing frame. The other end pivotally connects the second linkage rod, and the second linkage rod has two ends, one end of which is pivotally connected to the first linkage rod, and the other end of which is pivotally connected to the pedal group.

In an embodiment, each of the pedal sets has a fixing portion, a pedal, and a sliding seat, the sliding seat is fixed to the pedal, and the sliding seat is movable on a sliding rail of the fixing portion, the second linkage One end of the rod is pivotally connected to the slider.

In one embodiment, the driving member comprises a motor, a screw, and a sleeve, and one end of the sleeve is pivotally connected to the lifting frame.

In one embodiment, the sleeve has an internal thread that is threaded with the screw, and the motor can drive the screw to rotate, causing the sleeve to move along the screw toward or away from the motor.

In one embodiment, the front mounting bracket has a shaft, and each of the linkage mechanisms includes a crank, a support rod, a grip rod, and a connecting rod. The support rod has a pivoting portion, a sliding portion and a supporting portion. One end of the crank is connected to the shaft of the front mounting frame, and the other end of the crank is pivotally connected to the pivoting portion, and the sliding portion is slidable back and forth on the base. The grip bar includes a pivoting portion and an axle. The connecting portion is connected to the pedal group, and the other end of the connecting rod is connected to the pivoting portion. The other end is pivotally connected to the pivoting portion. The grip portion is for the user to hold. The shaft connecting portion is axially disposed on the front mounting bracket.

In an embodiment, the rear end of the base has a slide rail on which the sliding portion can slide.

The embodiments of the present invention will be described in detail below with reference to the drawings. In some embodiments, the examples shown in the figures may be to scale, but in other embodiments, not necessarily to scale. In some embodiments, the same or similar element symbols may represent the same, similar, or analogous elements and/or elements, but in some embodiments, different elements may also be represented. In some embodiments, nouns describing directions, such as up, down, left, right, up, down, over, above, below, behind, front, etc., may be interpreted literally, but in other embodiments, Can not be explained in terms of literal meaning. In addition, some of the elements may be omitted from the illustration in order to clearly illustrate certain elements of the invention. In the description of the specification, numerous specific details are set forth in the description of the invention.

2 through 5 illustrate a motion-changing device 2, such as an elliptical machine 2, that can vary strokes in accordance with a preferred embodiment of the present invention. The main components of the elliptical machine 2 include a base 10, left/right linkage mechanisms 20a/20b, left/right span adjustment mechanisms 30a/30b, and a transmission mechanism 40.

As shown in FIG. 2, the left/right interlocking mechanism 20a/20b and the left/right span adjusting mechanism 30a/30b of the moving device 2 are bilaterally symmetrical. Wherein "a" and "b" indicate the left and right components, respectively, which may be removed for simplicity of description. For example, "left/right linkage mechanism 20a/20b" may be collectively referred to as "linkage mechanism 20", "left/right span" The adjustment mechanisms 30a/30b" may be collectively referred to as "span adjustment mechanism 30", and other components may be represented by analogy. Further, in FIGS. 3, 4, and 5, in order to clearly show the right interlocking mechanism 20b and the right span adjusting mechanism 30b, the left interlocking mechanism 20a and the left span adjusting mechanism 30a are omitted and not shown.

As shown in FIG. 2 and FIG. 3, the base 10 is erected on a support surface or a ground. The front end of the base 10 has an upwardly extending front mounting bracket 11 and a rear end having a slide rail 13. The front fixing frame 11 refers to a fixing mechanism provided at the front end of the moving device 2 for fixing or connecting the transmission mechanism 40, the left/right linkage mechanism 20, the span adjustment mechanism 30, and the control panel (as shown) and the like. The front mount 11 can have a shaft 111. The left interlocking mechanism 20a and the right interlocking mechanism 20b are respectively axially disposed on the left and right sides of the front mounting bracket 11. The left/right interlocking mechanism 20a/20b may include a crank 21, a support lever 23, a pedal set 25, a grip 27, and a link 29, respectively. The support rod 23 may have a pivot portion 231, a sliding portion 233, and a support portion 235. One end of the crank 21 is rotatably disposed on the shaft 111 of the front mounting bracket 11 , and the other end of the crank 21 is pivotally connected to the pivoting portion 231 of the support rod 23 . The sliding portion 233 is slidable back and forth on the (left/right) slide rail 23 of the base 10. Each of the pedal sets 25 has a fixed portion 251, a pedal 253, and a slider 255. The fixing portion 251 is axially provided on the support portion 235 of the support rod 23 and is fixed to one end of the link 29 . The (left/right) grip 27 has a pivot portion 271, a shaft portion 273, and a grip portion 275. The other end of the connecting rod 29 is pivotally disposed on the pivoting portion 271. The gripping portion 275 is for the user to hold. The shaft connecting portion 273 is axially disposed on the front mounting frame 11 so that the gripping rod 27 can be pivoted to the shaft center 273. swinging.

As shown in FIG. 2 and FIG. 3, the transmission mechanism 40 is disposed on the front fixing frame 11 and is connected to the left/right pedal group 25a/25b through the left/right linkage mechanism 20a/20b, respectively. When the user drives the transmission mechanism through the pedal group 25, The trajectory of the pedal 253 is substantially an elliptical trajectory or an approximately elliptical trajectory. The transmission mechanism 40 can include, but is not limited to, the drive wheel 41 and the flywheel 43. The driving wheel 41 is axially disposed on the shaft 111 of the front mounting frame 11, and is rotatable by the rotational driving of the crank 31. The flywheel 43 is axially disposed at the front end of the base 10. In the preferred embodiment of the present invention, the driving wheel 41 drives the flywheel 43 through a linkage (not shown), such as a belt, as a power transmission medium.

As shown in FIGS. 2 and 3, each of the span adjusting mechanisms 30 includes a rocking lever group 31, a linkage rod group 33, and a driving member 35. The swing lever group 31 has a lift frame 311, a swing lever 313, a pulley block 315, a first connecting rod 317, and a second connecting rod 319. The linkage rod set 33 includes a first linkage rod 331 and a second linkage rod 333. The drive member 35 is used to raise or lower the swinging rod group 31. In the present embodiment, the driving member 35 may include, but is not limited to, a motor 351, a screw 353, and a sleeve 355. One end of the sleeve 355 is pivotally connected to the lift frame 311. The sleeve 355 has an internal thread that is screwed with the screw 353, and the motor 351 can drive the screw 353 to rotate, moving the sleeve 355 along the screw 353 in a direction away from the motor 351 or close to the motor 351.

As shown in FIG. 2 and FIG. 3, the lift frame 311 has two ends, one end of which is pivotally disposed on the front mounting frame 11 and the other end of which is pivotally connected to the swinging bar 313. Further, the portion of the lift frame 311 between the ends is pivotally coupled to the sleeve 355. The swinging rod 313 has two ends, one end of which is pivotally connected to the lifting frame 311 and the other end of which is pivotally connected to the pulley seat 315. The pulley block 315 is fixed to the first connecting rod 317. The first connecting rod 317 has two ends, one end of which is connected to the pulley seat 315, and the other end is pivotally connected to the second connecting rod 319. The second connecting rod 319 has two ends, one end of which is pivotally connected to the first connecting rod 317 and the other end of which is pivotally connected to the supporting portion 235. The pulley block 315 is a hollow structure. The first linkage rod 331 is sleeved in the pulley seat 315 and has two ends. One end of the first linkage rod 331 is pivotally disposed on the fixing rod 112 of the front mounting bracket 11 , and the other end is pivotally disposed on the second linkage rod 333 . The second linkage rod 333 has two ends, one end of which is pivotally connected to the first linkage rod 331 and the other end of which is pivotally connected to the sliding seat 255. The fixing portion 251 has a slide rail 2511, and the pedal 253 is fixed to the slider 255, and the slider 255 is movable on the slide rail 2511.

Figure 6 is a partially enlarged view showing the pulley block 315 in accordance with a preferred embodiment of the present invention. As previously mentioned, the pulley block 315 is a hollow structure, the first linkage rod 331 passes through the pulley block 315, and the first linkage rod 317 is fixed to the pulley block 315. In addition, the pulley block 315 can have a plurality of 315 pulleys that abut the rocking bar 313 such that the pulley block 315 can slide smoothly along the rocking bar 313 without gaps. For example, in the present embodiment, the pulley seat 315 has a first pulley 3151 and a second pulley 3153; one end of the first connecting rod 317 is pivotally connected to a fastener 3172, and the fastener 3172 has a third pulley 3174, wherein the first pulley 3151 and The second pulley 3153 is located on the same side inside the pulley block 315, and the third pulley 3174 is located between the other side of the pulley seat 315 and the first connecting rod 317 such that the rocking rod 313 is sandwiched by the three pulleys. In other embodiments of the present invention, the number of pulleys is not limited to three, and the position thereof may be appropriately changed. The structure of the pulley block 315 can also be appropriately changed, and is not limited to the one shown in the drawing.

Referring to Figures 3 and 4, when the motor 351 drives the screw 353, the sleeve is moved along the screw 353 toward the 355 away from the motor 351, thereby pushing the lift frame 311 to be raised. Thereby, the pulley seat 315 moves upward along the first linkage rod 331 , thereby driving the first linkage rod 331 and the second linkage rod 333 such that the first linkage rod 331 and the second linkage rod 332 face the rear of the elliptical machine The end extension causes the angle θ between the vertical direction of the first linkage rod 331 and the front fixing frame 11 to become larger, and the second linkage rod 333 drives the sliding block 255 to move backward along the sliding rail 2511, as shown by the arrow in the figure. .

Referring to Fig. 5, when the motor 351 drives the screw 353, the sleeve 355 is moved toward the motor 351 along the screw 353, thereby pulling the lift frame 311 down. Thereby, the pulley seat 315 moves downward along the first linkage rod 331 , thereby driving the first linkage rod 331 and the second linkage rod 333 such that the first linkage rod 331 and the second linkage rod 332 face the front end of the elliptical machine Retracting causes the angle θ between the vertical direction of the first linkage rod 331 and the front fixing frame 11 to become smaller, and the second linkage rod 333 drives the carriage 255 to move forward along the slide rail 2511.

3 to 5 show only the right swing link group 31 and the right linkage rod group 33, and the left swing link group and the right linkage rod group are not shown. 7 and 8 show that the left and right swing lever group 31 and the left/right linkage lever group 33 are simultaneously displayed. As shown in FIG. 7, when the lift frame 311 is lifted, the angle θ1 between the left first interlocking lever 331a and the front mounting bracket 11 in the vertical direction becomes large, and the carriage 255a (along with the pedal fixed thereto) is driven. At the same time, the angle θ2 between the right first linkage rod 331b and the front holder 11 becomes larger, and the carriage 255 is moved backward, whereby the stroke span is increased, for example, to 24 吋.

As shown in FIG. 8, when the lift frame 311 is lowered, the angle θ1 between the left first interlocking lever 331a and the front mounting bracket 11 in the vertical direction becomes smaller, and the sliding carriage 255a is moved backward; meanwhile, the right first The angle θ2 between the interlocking lever 331b and the front mount 11 becomes small, and the carriage 255 is moved forward, whereby the stroke span is reduced, for example, to 18 吋.

Figures 7 and 8 show the maximum and minimum travel spans of the exercise device 2, respectively. However, the position of the sleeve 355 can be adjusted such that the stroke span is between the maximum and minimum values.

Since the left and right swing lever group 31 and the left and right linkage lever group 33 are disposed between the front mount 11 and the pedal group 25 instead of the crank 21, when the stroke span is changed, the elliptical locus of the pedal 25 is on the long axis. The direction is expanded or retracted, and the user does not raise the footstep due to the increased elliptical trajectory, which is more ergonomic and suitable for users of different heights.

Each and every embodiment of the present disclosure may be modified, changed, combined, exchanged, omitted, substituted, and changed equally, as long as it is not mutually exclusive, and belongs to the concept of the present invention. It is within the scope of the invention. Structures or methods that may correspond to or be associated with the features of the embodiments described herein, and/or any application, waiver, or approved application by the inventor or assignee are incorporated herein by reference. The incorporated components, including some or all of their corresponding, related, and modified, (1) operative and/or constructible (2) are operative and/or constructible according to those skilled in the art. (3) Implementing/manufacturing/using or combining the present specification, the related application of the present application, and any part based on common knowledge and judgment of those skilled in the art.

Unless otherwise stated, some conditional sentences or words, such as "can", "may", "may", or "may", are usually intended to express the embodiment of the case, However, it can also be interpreted as a feature, component, or step that may not be required. In other embodiments, these features, elements, or steps may not be required.

The foregoing documents, the contents of which are incorporated herein by reference, are hereby incorporated by reference. The examples provided by the present invention are intended to be illustrative only and not to limit the scope of the invention. The features or other features mentioned in the present invention include method steps and techniques, and may be combined or altered, in part or in whole, in accordance with the features or structures described in the related application. An irreplaceable embodiment. Corresponding or related to the features and methods disclosed herein, including those that can be derived from the text, and those skilled in the art, some or all of which may be (1) operable and/or Or configurable (2) modified according to the knowledge of those skilled in the art to be operable and/or constructible (3) implemented/manufactured/used or combined with any part of the present specification, including (I) the present invention or related Any one or more portions of the structures and methods, and/or (II) any alterations and/or combinations of the contents of any one or more of the inventive concepts and portions thereof, including any one or more of Or any change and/or combination of the contents of the embodiments.

1‧‧‧Elliptical machine
2‧‧‧ sports equipment
10‧‧‧ Pedestal
11‧‧‧ front mounting
111‧‧‧Axis
112‧‧‧Fixed rod
13‧‧‧Slide rails
20a‧‧‧Left linkage mechanism
20b‧‧‧right linkage mechanism
21‧‧‧ crank
23‧‧‧Support rod
231‧‧‧ pivotal department
233‧‧‧Sliding section
235‧‧‧Support
25‧‧‧ pedal group
251‧‧‧ Fixed Department
2511‧‧‧rails
253‧‧‧ pedal
255‧‧‧ slide
27‧‧‧ Grip
271‧‧‧ pivoting department
273‧‧‧Axis joint
275‧‧‧ grip
29‧‧‧ Connecting rod
30‧‧‧Span adjustment mechanism
31‧‧‧Swing bar group
311‧‧‧Yangsheng
313‧‧‧Swing bar
315‧‧‧ pulley seat
3151‧‧‧First pulley
3153‧‧‧Second pulley
3174‧‧‧third pulley
317‧‧‧First connecting rod
3172‧‧‧fasteners
3174‧‧‧third pulley
319‧‧‧Second connecting rod
33‧‧‧ linkage rod group
331‧‧‧First linkage rod
333‧‧‧Second linkage
35‧‧‧ drive parts
351‧‧‧Motor
353‧‧‧ screw
355‧‧‧ sleeve
40‧‧‧Transmission mechanism
41‧‧‧Drive wheel
43‧‧‧ flywheel θ, θ1, θ2‧‧‧ angle

Figure 1 shows the fixed travel span of a conventional art elliptical machine. 2 is a perspective view showing an exercise device in accordance with a preferred embodiment of the present invention. Figure 3 is a partial perspective view (ignoring certain elements) showing an exercise device in accordance with a preferred embodiment of the present invention. 4 and 5 are partial side elevational views (ignoring certain elements) showing an exercise device in accordance with a preferred embodiment of the present invention. Figure 6 is a partial enlarged view showing a pulley block of a moving device in accordance with a preferred embodiment of the present invention. 7 and 8 are side views showing the operation of the exercise device in two stroke spans in accordance with a preferred embodiment of the present invention.

2‧‧‧ sports equipment

10‧‧‧ Pedestal

11‧‧‧ front mounting

20a‧‧‧Left linkage mechanism

20b‧‧‧right linkage mechanism

23‧‧‧Support rod

25a/b‧‧ (left/right) pedal set

27‧‧‧ Grip

271‧‧‧ pivoting department

273‧‧‧Axis joint

275‧‧‧ grip

29‧‧‧ Connecting rod

30a/b‧‧ (left/right) span adjustment mechanism

311‧‧‧Yangsheng

313‧‧‧Swing bar

315‧‧‧ pulley seat

317‧‧‧First connecting rod

319‧‧‧Second connecting rod

33‧‧‧ linkage rod group

331‧‧‧First linkage rod

333‧‧‧Second linkage

Claims (9)

A movement device comprises: a base having a front end extending upwardly from a front fixing frame; a transmission mechanism disposed on the front fixing frame; and a left and right linkage mechanism respectively disposed on the left and right sides of the front fixing frame One end of the left and right linkage mechanism is respectively connected to the transmission mechanism, and the other end has a left and right pedal group respectively, the left and right pedal groups respectively form a motion track; and a span adjustment mechanism includes: a left and right linkage The rod group has two ends respectively, one end of which is connected to the front fixing frame, the other end is movably connected to the left and right pedal groups; one left and right swinging rod group respectively have two ends, one end of which is connected to the front fixing frame, and the other end is connected to the front fixing frame One end is movably connected to the left and right pedal sets; and a driving member is connected to the left and right swinging rod sets, the left and right swinging rod sets respectively comprise a pulley seat, the pulley seat is a hollow structure, and has a plurality of roller bearings The left and right linkage rod sets are passed through, and the left and right linkage rod groups are passed through the pulley block. The driving member is used for lifting or lowering the left and right swinging rod groups to determine a stroke span. The motion device of claim 1, wherein the plurality of rollers are respectively located at two sides of the left and right linkage rod groups to clamp the left and right linkage rod groups. The exercise device of claim 1, wherein each of the swing bar sets further includes a lift frame, a rocking bar, a first connecting rod, and a second connecting rod, the lifting frame having two ends. One end is pivotally connected to the front fixing frame, and the other end is pivotally connected to the rocking bar. The rocking bar has two ends, one end of which is pivotally connected to the lifting frame, and the other end is pivotally connected to the pulley seat, the first connecting rod With both ends, its The other end is connected to the pulley block, and the other end is pivotally connected to the second connecting rod. The second connecting rod has two ends, one end of which is pivotally connected to the first connecting rod and the other end of which is pivotally connected to the pedal set. The motion device of claim 3, wherein each of the linkage rod sets includes a first linkage rod and a second linkage rod, the first linkage rod is sleeved in the pulley seat and has two ends, one end of which The second connecting rod is pivotally connected to the second connecting rod, and the second connecting rod has two ends, one end of which is pivotally connected to the first linking rod, and the other end is pivotally connected to the pedal group. The motion device of claim 4, wherein each of the pedal sets has a fixing portion, a pedal, and a sliding seat, the sliding seat is fixed to the pedal, and the sliding seat is at a sliding rail of the fixing portion Moving upward, one end of the second linkage rod is pivotally connected to the sliding seat. The motion device of claim 3, wherein the driving member comprises a motor, a screw, and a sleeve, and one end of the sleeve is pivotally connected to the lifting frame. The exercise device of claim 6, wherein the sleeve has an internal thread that is screwed to the screw, the motor can drive the screw to rotate, the sleeve is along the screw, away from the motor or near the motor The direction of movement. The motion device of claim 1, wherein the front mounting frame has a shaft, and each of the linking mechanisms includes a crank, a support rod, a grip rod, and a connecting rod, the support rod has a pivoting portion, a sliding portion and a supporting portion, one end of the crank is connected to the shaft of the front fixing frame, and the other end of the crank is pivotally connected to the pivoting portion, and the sliding portion is slidable back and forth on the base, the holding rod The utility model comprises a pivoting portion, a shaft connecting portion and a holding portion, wherein one end of the connecting rod is connected to the pedal group, and the other end is pivotally connected to the pivoting portion, the holding portion is for the user to hold, the shaft connecting portion shaft Located in the front mounting bracket. The motion device of claim 8, wherein the rear end of the base has a slide rail on which the sliding portion can slide.